Starting mechanism for explosion-motors.



. E. FILLETTAZ.

STARTING MECHANISM FOR EXPLOSION MOTORS.

APPLICATION FILED AUG.2, 1912.

1 083,929 Patented J an. 13, 1914.

2 SHEETSSHEET 1.

E. FILLETTAZ.

STARTING MECHANISM FOR EXPLOSION MOTORS.

APPLICATION FILED AU\G.2,1EJ12.

1,683,929, Patented Jan. 13, 1914 Z SHEETS-SHEET 2.

FIG- 3 Y srn rns Parana crunch.

EDMOND FILLETTAZ, 01" LYON, FRANCE.

STARTING MECHANISM FOR EXPLOSION -MOTORS.

eas es.

To all whom it may concern:

Be it known that I, EDMOND FILLEITAZ, a citizen of the French Republic, residing at Lyon, in France, have invented certain new and useful Improvements in Starting Mechanism for Explosion-Motors, of which the following is a specification.

The mechanism which forms the object of the present invention is for starting exploi I 2o means comprising a cord or cable and levers and with an automatic unclutchin device which disconnects the motor shaft rom the auxiliary shaft immediately the motor has started.

The annexed drawing illustrates a form of construction of the invention intended to be installed on a motor car'.

Figure l is a side view of the whole of the device. Fig. 2 is an end view partly in section on line II-II of Fig. 1. Fig. 3 is a section on an enlarged scale on line llllIll of Fig. Fig. 4 is a front view of the interior of the pawl gear which starts the moto 5 is a section on line VV of i in lflevicc 1 l g 6 illustrates construction of the pawl 7 and 8 are longitudinal and vc c sections respectively of another of construction of the automatic v sleeve 1 of the car (or any s part if the apparatus is not nit-or car) is provided with a i carries a divided boss 3 threaded support. The head liary shaft 2, which is situelincmt t with the motor shaft .ovided with longitudinal channels iii-circular section and engages in a 1 fixed to the end of the motor shaft 4. n s cup is provided with deep recesses 7 .11 :ber to the channels 5 of the .n each of said recesses a ball 8 is a collar 9 provided Specification of Letters Patent.

Application filed August 2, 1912.

Patented Jan. 13, T91 1.

Serial No. 712,867.

interiorly with teeth in the form of a ratchet 10 (Figs. 3 and 4) with which awls 11 car ried by the boss 3 engage. T e collar 9 is mounted on balls and has an arm 12 by means of which it can be given a rotary movement which if it is executed in the direction of the arrow a (Figs. 2 and 4) causes the shaft 2 to turn by reason of the engagement of the pawls 11 with the ratchet 10, while in the reverse direction the movement of the collar 10 has no effect on this axle. The collar 9 is constantlysubmitted to the action of a spring 13 surrounding the shaft 2 and tending to return it to its initial position shown in full lines in F ig..2. The ends of the spring are respectively fixed to the sleeve 1 and to the arm 12 of the collar as shown in Fig. 3.- The torsion of this spring'draws the arm 12 backward Whenit is free. v

The shaft 2 being rotated as has been ex plained, rotates the motor shaft 4 by means of the balls 8, some. of which are always wedged between the ends of the channels 5 and the sides of the recesses 7 as shown in Fig. 5. This wedging action operates while the motor is not working, but immediately.

it is started and attains a certain speed, all the balls 8 are thrown to the ends of the recesses 7 by the action of centrifugal force, so that the motor shaft is independent of the shaft 2 which thus remains immovable dur ing the action of the motor.

The opera n of the collar 9 is effected by means of a cord or cable 143 attached to a button 15, the position of which is'rcgulatable along a guide 16 made in the arm 12. The cord 14 passes over a pulley 17 (Figs. 1 and 2), the spindle of which is articulated at any point of the frame or the axle tree of the vehicle in order that the pulley may follow the variations of inclination of the cord i l; this cord is suitably conducted along the frame of the car and its other end is attached to a lever 18 Fig. 1. fixed on an axle 19 which carries a toothed sector 20. A strong spring 21 is also fixed to the lever 18, the other end of which is attached to a fixed. point; this spring is for the purpose of maintaining the cord constantly stretched and for absorbing the force due to the accidental backward movement of the motor. The sector 20 engages with a second sector 22 mounted on an axle 23 carrying a lever 24; arranged near the driver and by means of which the mechanism is put in action.

This toothed sector mechanism allows of ac'uatiiig the inechanism by a forward and backward movement of the actuating lever 24. Further it allows of obtaining a long stroke of the arm 18 with a relatively small angular displacement of the lever 24:.

To put the motor in action the lever 24 is pushed to the end of the forward course which has the elfect of moving the lever 18 to the position shown in full lines in Fig. 1 and of stretching the spring 21; the cable l t is then only submitted to the tension of the spring 13 surrounding the shaft 2 in acting on the arm 12, which tension is sutlicient to prevent the cord fluctuating. 'ihe lever 24: being drawn sharply backward, the lever 18 moves from the position sho'wn in full lines to that shown in dotted lines (Fig. 1), thus exercising traction on the cord to which is added the traction arising from the tension of the spring 21. This traction is transmitted to the arm 12 of the collar 9 which causes the shaft 2, as well as the motor shaft d, to rotate, clutched iii the manner before indicated. A'siiigle impulsion is generally sufficient to make the motor rotate sufficiently to cause an explosion, but the same operation can be repeated several times if the motor does not start immediately. Immediately the motor is working and attains a certain speed, the action produced by the balls 8 ceases automatically as has been explained; the shaft 2 ceases to rotate and the pawl and ratchet gear remains at rest.

The described mechanism can vary in its details of construction. The cord and toothed sector actuating mechanism can be modified or suppressed in the application if it is possible toattach the cord directly to the actuating lever 24. In this case the spring 21 will be fixed on the lever 2%. Also the pawl and ratchet clutch could be replaced by that shown in Fig. 3, which coinprises balls or rollers 25 adapted to be wedged between inclines of the boss 3 and the circular liollowing of the collar 9. The

unclutching mechanism, operated by the action of ceiiti-ifugil force, can also be modi fied, for instance, as shown in Figs. 7 and S, the channels 5" of the shaft 2 are rectangular and the cup 6 of the motor shaft 4 is provided with two bolts 26 engaged in the channels 5 by springs When the motor turns, the centrifugal force separates the movable parts which produces the disengagement of the motor shaft and auxiliary shaft. Each of these devices can be employed with the one or other of those described previously, or in combination with any other mechanism operating on the same principles.

lVhat I claim as my invention and desire to secure by Letters Patent of the United States is:-

1. In starting mechanism for explosion motors, the combination of the motor shaft, an auxiliary shaft arranged on the same axis as the motor shaft, means for clutching said auxiliary shaft. with the motor shaft and for automatically unclutching the same when the motor has started and attained a certain speed, a collar on said auxiliary shaft, a. ratchet within said collar, a divided boss on said auxiliary shaft, pawls carried by said boss engaging with the teeth of said ratchet, an arm on said collar,'a spring surrounding said shaft and engaging said collar and adapted to yieldingly hold the collar in normal position, a cord attached to said arm for imparting a rotary movement to said collar and to said auxiliary shaft in the one direction, and a spring for tensioning said cord.

2. In starting mechanism for explosion motors, the combination of the motor shaft, an auxiliary shaft arranged on the same axis as the motor shaft, a channeled head on said auxiliary shaft, a cup on the end of the motor shaft in which said head engages and pi'ovidedwith relatively deep recesses equal in number to the channels in said head,

members movable within said channels and adapted to lock saidhead and said cup together or to be thrown by centrifugal force into the recesses of said cup to free the head of the auxiliary shaft therefrom when the motor has started, a collar on said auxiliary shaft, a ratchet within said collar, a divided boss on said auxiliary shaft, pawls carried by said boss engaging with the teeth of said ratchet, an arm on said collar, a spring surrounding said auxiliary shaft and fast at one end and having its other end engaging said collar, a cord attached to said arm for imparting a rotary movement to said collar and to said auxiliary shaft in the one direc tion, a spring for tensiouiiig said cord, a lever attached to the free end of said cord, a sector on said lever, an operating lever ioo and a sector thereon coactiiig with the afore- JEAN GERMAIN, GUiLLAULuE Piociin. 

